Allicin from garlic neutralizes the haemolytic activity from pneumococcal diseases.
Allicin from garlic neutralizes the hemolytic activity of intra- and extra-cellular pneumolysin O in vitro.
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Key Findings
Abstract
Pneumolysin (PLY) is a key virulence factor contributes to the pathogenesis of Streptococcus pneumoniae. In this study we investigated the effect of allicin and aqueous garlic extracts on haemolytic activity of PLY both in prelysed and intact cells. Additionally the antimicrobial activity of allicin was tested against the bacteria. All tested materials potently inhibited the PLY haemolytic activity. Allicin neutralizes PLY in a concentration- and time-dependent manner. Twenty five minute incubation of PLY (2 HU/mL) with 0.61μM/mL concentration of allicin, totally inhibited haemolytic activity of PLY (IC50 = 0.28 μM/mL). The inhibitory activity of old extract of garlic was similar to pure allicin (IC50 = 50.46 μL/mL; 0.31 μM/mL; P
Affiliation
Department of Microbiology, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
External References
- PubMed ID:
- 21184771
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